AT89C51SND1C是AT89C51核心的处理器，包含一个MP3解码器，完全兼容8051的Keil C51编译环境，适合8051使用者的MP3解码应用。...

80C52参考频率计程序，包含中断和定时器典型应用代码段-80C52 reference Cymometer procedures, including suspension and timer typical application code segment

315遥控，控制4路继电器开关,系统最多可控制16路继电器-315 remote control, control 4-way relay switch, the system can control up to 16 relays

msp430F149 FLL模块程序，很好用-msp430F149 FLL module procedures, good use

51系列单片机LCD液晶显示程序-51 MCU LCD display program

485端口抄表程序，通过485端口进行电表抄写-485-port meter-reading program, through the 485 meter port copying

基于PIC16C54单片机的智能软件狗设计 -PIC16C54 microcontroller based Intelligent design software dog

一个用汇编编写的51单片机发声程序,内嵌一首简单歌曲"八月桂花香"。-Used to prepare a compilation of 51 single-chip voice procedures, embedded in a simple song

lpc单片机内部看门狗计时器程序-lpc SCM internal watchdog timer procedures

51单片机P2口接4*4键盘的行线和列线；红灯亮时进行频率输入；绿灯亮时进行占空比输入；频率值暂定在100到60KHZ之间；输入频率和占空比时要输够六位整数，不够的在前面补0；占空比以百比数（0-100）形式存在。-51 Singlechip P2 mouth then 4* 4 keyboard line and column line red light when the frequency of input green when the input duty cycle frequency value is tentatively scheduled for between 100 to 60KHZ input frequency and duty than enough to lose six integers, not enough to fill in front of 0 duty cycle than a few hundred (0-100) form.

用at89s52访问PDIUSBD12(USB协议）-AT89S52 visit with PDIUSBD12 (USB Protocol)